I don't know, but a stock Hemi crank is plenty rugged. Before the fairly recent advent of replacement parts came a long, quite a few of the top running Hemi cars in the country ran Street Hemi cranks, Kellogg if you could get it.
I ran them myself for forty some odd years, and never broke one. One of the things a lot of folks don't know, but a lot of them were cracked...even from the factory. And, a lot of them were raced with cracks in them. We would pull it down, have it magged again, and the crack never went anywhere. We used those motors for years, and wore them out, but never broke anything. So did a lot of others, and if they are honest they will admit it. A lot of the old timers can tell you what "ring it out" means.
A side, a famous Pro Stock racer told me that they ran many a cracked street hemi crank in their top tier Super Stockers. They would "ring it out", not even mag it. If it rang out OK they'd use it. They never experienced a failure, either. Now, I don't know that I'd do that now, because I simply don't have to, but there is more to these stories than these folks tell you.
Now, I know a lot of young guys on here are going to get on their hackles and say it ain't so, and have explanations why you shouldn't run it. I don't know where this latest fad of measuring quality of parts by HP came from...some marketing genius' I guess.
But, if you are going to run it behind an automatic, in a Stock / Bracket type application, it sure wouldn't scare me to use it.
